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Finding the Fourth Proportional to 325,632.20, 488,966.70 and 220,915.40

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Solution

The fourth proportional to 325,632.20, 488,966.70 and 220,915.40 is: 331,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,632.20 : 488,966.70 = 220,915.40 : x
  2. Step 2: Convert to fraction form
    325,632.20/488,966.70 = 220,915.40/x
  3. Step 3: Cross multiply
    325,632.20x = 488,966.70 × 220,915.40
  4. Step 4: Simplify right side
    325,632.20x = 108,020,274,117.18
  5. Step 5: Solve for x
    x = 108,020,274,117.18/325,632.20
  6. Step 6: Final answer
    x = 331,724.79

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